Terry are you using the CAA-500 Comet analyzer? If so, then are you
using the N connector to test 70cm? The manual states that the UHF
(SO-239) connector is for everything 300MHz and below, and the N
connector is for 300 to 500 MHz. As it is, its like there is no antenna
connected to the N connector and thus your SWR is at infinity.
73
John Denison
KD5YOU
On 5/27/2024 6:33 PM, terry leatherland via BVARC wrote:
I'm sure someone knows about Mobile antennas. Our friends at River
Oaks Car Stereo for sure. Anthony?
Here is my dilemma , or something I am doing wrong.
I bought this antenna to mount on my new truck. I have a brand new
Comet analyzer. The antenna is hood lip mounted with a comet Hood mount.
When I analyze the raw antenna thru its one piece of coax, it is
perfect 1.5 or less on 2Meters @ 50ohms.
But when I dial up to 440 Mhz, the swr and Ohms is off the chart.
My radio is my old reliable Kenwood TMV71 of which I have 3 identical.
Shouldn't I be able to just change the band knob to 430 and it read
good SWR? Do I have to find the resonant point of the upper band and
start trimming the top length down to 440 good swr?
I'm perplexed or doing something dumb.
Terry
Inline image
Terry Leatherland, K5PGF
281-455-8090
Sugar Land, Tx
________________________________________________
Brazos Valley Amateur Radio Club
BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here:https://www.mail-archive.com/bvarc@bvarc.org/
________________________________________________
Brazos Valley Amateur Radio Club
BVARC mailing list
BVARC@bvarc.org
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
Publicly available archives are available here:
https://www.mail-archive.com/bvarc@bvarc.org/
